Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Gretchen M Zimmerman, MD, PA

Organization Surgery Physician · NPI 1821202482

Gretchen M Zimmerman, MD, PA is a Surgery Physician in Houston, Texas. Licensed in Texas. Registered with an NPI since 2007.

Licensed in
TX
In the registry since
2007
What do these letters mean?
PA — Professional association
A form of business registration, not a clinical qualification.

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Practice location Address checks out

6550 Fannin St Ste 2307
Houston, TX 77030-2717
Phone: (713) 797-9500
Fax: (713) 797-9511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence G2253 (TX)

Record details

NPI number1821202482
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Gretchen Zimmerman — Owner · (713) 797-9500
NPI enumeratedMay 10, 2007
Last updated in NPPESMarch 31, 2014
Mailing address6550 Fannin St, Suite 2307, Houston, TX 77030-2717

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